Pahutar, Lenni Juliani, and I Wayan Dirgeyasa Tangkas. “Moral Values in Mandailing Song Lyrics by Top Simamora Feat Dealiana Lubis”. TRANSFORM : Journal of English Language Teaching and Learning 10, no. 4 (March 14, 2023): 191–202. Accessed July 3, 2025. https://jurnal.unimed.ac.id/2012/index.php/jelt/article/view/44113.